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var(--c-border)}.settings-row{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.settings-text{display:grid;gap:2px;max-inline-size:36ch}.button-group{display:flex;gap:6px;flex-wrap:wrap}.sim-state{font-size:13px;color:var(--c-text-faint)}.sim-state.is-on{color:var(--c-warning);font-weight:600}.segmented{display:inline-flex;padding:3px;gap:3px;border-radius:var(--radius-md);background:var(--c-surface-sunken);border:1px solid var(--c-border);justify-self:start}.segmented button{border:none;background:transparent;color:var(--c-text-muted);font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--radius-sm);cursor:pointer}.segmented button.is-on{background:var(--c-surface-raised);color:var(--c-text);box-shadow:0 1px 0 var(--c-border-strong)}.segmented.small button{font-size:12px;padding:5px 10px}.feed-groups{display:grid;gap:18px}.feed-group{display:grid;gap:8px}.feed-group-title{margin:0;font-size:13px;font-weight:600;line-height:1.5;color:var(--c-text-muted)}.feed-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:8px;margin:0;padding:0;list-style:none}.feed-row{--feed-name: 24px;--feed-choice: 40px;--feed-line: 26px;display:grid;grid-template-rows:var(--feed-name) var(--feed-choice) var(--feed-line);align-items:center;gap:6px;padding:10px 12px;border:1px solid var(--c-border);border-radius:var(--radius-md);background:var(--c-surface-sunken)}.feed-row.is-removed{background:transparent;border-style:dashed}.feed-row.is-removed strong{color:var(--c-text-muted)}.feed-row-head{display:flex;align-items:center;gap:8px;min-inline-size:0;cursor:pointer}.feed-row-head input{flex:none;inline-size:16px;block-size:16px;margin:0;accent-color:var(--c-accent);cursor:pointer}.feed-row-head strong{min-inline-size:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;line-height:var(--feed-name)}.feed-line{min-inline-size:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:12px;line-height:var(--feed-line)}select.feed-when{justify-self:start;max-inline-size:100%;block-size:var(--feed-line);padding:0 8px;border-radius:var(--radius-sm);border:1px solid var(--c-border);background:var(--c-surface-raised);color:var(--c-text);font:inherit;font-size:12px;cursor:pointer}select.feed-when:focus-visible{outline:2px solid var(--c-accent);outline-offset:1px}.btn.btn-small{font-size:12px;padding:4px 10px;min-block-size:28px}.settings-notice{font-size:13px;color:var(--c-warning);padding:10px 12px;border-radius:var(--radius-sm);background:color-mix(in srgb,var(--c-warning) 10%,transparent)}.danger-row{padding:14px;border-radius:var(--radius-md);border:1px solid color-mix(in srgb,var(--c-weak) 40%,var(--c-border));background:color-mix(in srgb,var(--c-weak) 5%,transparent)}.btn-danger{background:transparent;color:var(--c-weak);border-color:color-mix(in srgb,var(--c-weak) 60%,transparent)}.btn-danger:hover{background:color-mix(in srgb,var(--c-weak) 12%,transparent)}@media (max-width: 1240px){.home-top{grid-template-columns:1fr}}@media (max-width: 900px){.today-row{grid-template-columns:26px minmax(0,1fr) 56px}.today-row .chip{display:none}.today-chip>span:not(.today-chip-bar){display:none}}.today-list.is-compact .today-row{grid-template-columns:26px minmax(0,1fr) 64px}.overview-hero{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap;padding-block-end:28px;border-block-end:1px solid var(--c-border)}.overview-copy{display:grid;gap:8px;max-inline-size:30ch}.overview-hero .tagline{font-size:clamp(26px,2.6vw,36px);line-height:1.35}.overview-copy{max-inline-size:34rem}.lesson{max-inline-size:760px;gap:22px}.lesson-head{display:grid;gap:10px;padding-block-end:18px;border-block-end:1px solid var(--c-border)}.lesson-heading{font-size:clamp(26px,2.6vw,34px);line-height:1.4}.lesson-why{font-size:14px;color:var(--c-text-muted);padding-inline-start:12px;border-inline-start:2px solid var(--c-state-learning)}.lesson-block{display:grid;gap:10px;font-size:16px;line-height:1.95}.lesson-kind{font-size:12px;font-weight:700;letter-spacing:.3px;color:var(--c-text-faint)}.lesson-example .lesson-kind{color:var(--c-accent)}.lesson-pitfall{padding:16px 18px;border-radius:var(--radius-md);border-inline-start:3px solid var(--c-weak);background:color-mix(in srgb,var(--c-weak) 7%,var(--c-surface))}.lesson-pitfall .lesson-kind{color:var(--c-weak)}.lesson-rule{padding:16px 18px;border-radius:var(--radius-md);border-inline-start:3px solid var(--c-accent);background:color-mix(in srgb,var(--c-accent) 7%,var(--c-surface))}.lesson-rule .lesson-kind{color:var(--c-accent)}.lesson-takeaway{display:grid;gap:6px;padding:20px 22px;border-radius:var(--radius-lg);border:1px solid color-mix(in srgb,var(--c-accent) 40%,var(--c-border));background:radial-gradient(400px 180px at 100% 0%,color-mix(in srgb,var(--c-accent) 12%,transparent),transparent 70%),var(--c-surface);font-size:18px;font-weight:700;line-height:1.7}.sources{display:grid;gap:8px;font-size:13px}.explain .sources{margin-block-start:12px}.sources ul{display:grid;gap:4px}.sources li{font-family:var(--font-mono);font-size:12.5px;color:var(--c-text-muted);text-align:end}.sources a{color:var(--c-accent);text-decoration:none;border-block-end:1px solid color-mix(in srgb,var(--c-accent) 40%,transparent)}.lesson-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-block-start:18px;border-block-start:1px solid var(--c-border)}.feedback-actions{gap:8px}.summary-actions{display:flex;gap:8px;flex-wrap:wrap}.mentor{display:grid;gap:12px;padding:16px 18px;border-radius:var(--radius-md);background:var(--c-surface-sunken);border-inline-start:3px solid var(--c-accent)}.mentor-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.mentor-thread{list-style:none;margin:0;padding:0;display:grid;gap:14px}.mentor-exchange{display:grid;gap:8px}.mentor-turn{display:grid;gap:6px}.mentor-turn.is-learner{display:flex;gap:8px;align-items:baseline;color:var(--c-text-muted);font-size:13.5px}.mentor-who{font-size:11.5px;font-weight:600;letter-spacing:.02em;color:var(--c-text-faint)}.mentor-turn.is-mentor{padding:12px 14px;border-radius:var(--radius-sm);background:var(--c-surface);border:1px solid var(--c-border)}.mentor-turn.is-mentor.is-ungrounded{border-color:color-mix(in srgb,var(--c-warning) 55%,var(--c-border))}.mentor-reply{margin:0;line-height:1.9}.mentor-probe{margin:0;display:grid;gap:2px;padding-inline-start:10px;border-inline-start:2px solid var(--c-accent-muted);line-height:1.8}.mentor-grounding{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}.mentor-tag{font-size:11.5px;padding:2px 8px;border-radius:999px;border:1px solid var(--c-border);color:var(--c-text-muted);background:var(--c-surface-sunken)}.mentor-tag.is-generated{color:var(--c-accent);border-color:color-mix(in srgb,var(--c-accent) 40%,var(--c-border))}.mentor-tag.is-caution{color:var(--c-warning);border-color:color-mix(in srgb,var(--c-warning) 50%,var(--c-border))}.mentor-status{margin:0}.mentor-status.is-failed{color:var(--c-warning)}.mentor-asks{display:flex;flex-wrap:wrap;gap:8px}.mentor-asks:empty{display:none}.mentor-form{display:flex;gap:8px}.mentor-input{flex:1;min-width:0;padding:10px 12px;border-radius:var(--radius-sm);border:1px solid var(--c-border);background:var(--c-surface);color:var(--c-text);font:inherit;font-size:14px}.mentor-input:focus-visible{outline:2px solid var(--c-accent);outline-offset:1px;border-color:transparent}.mentor-input::placeholder{color:var(--c-text-faint)}.mentor-note{margin:0}.mentor-active{margin:0;font-size:13px;color:var(--c-text-muted)}.mentor-active.is-on{color:var(--c-accent)}.field{display:grid;gap:6px}.field-label{display:flex;justify-content:space-between;align-items:baseline;font-size:13px;font-weight:600}.field-status{font-size:11.5px;font-weight:500;color:var(--c-text-faint)}.field input{padding:9px 12px;border-radius:var(--radius-sm);border:1px solid var(--c-border);background:var(--c-surface-sunken);color:var(--c-text);font:inherit;font-family:var(--font-mono);font-size:13px}.field input:focus-visible{outline:2px solid var(--c-accent);outline-offset:1px;border-color:transparent}.field input::placeholder{color:var(--c-text-faint)}.model-list{display:grid;gap:6px}.model-option{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:9px 12px;border-radius:var(--radius-sm);border:1px solid 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4px;font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--c-text-faint);text-align:end}.nav-list+.nav-list{margin-block-start:6px}em{font-style:normal;font-weight:600}.account-form{display:grid;gap:12px}.sync-status.is-synced{color:var(--c-strong)}.sync-status.is-error,.sync-status.is-unauthorized{color:var(--c-warning)}.sync-status.is-syncing,.sync-status.is-idle,.sync-status.is-off{color:var(--c-text-muted)}.credit-chip{display:inline-flex;align-items:center;gap:8px;white-space:nowrap}.credit-chip .credit-label{color:var(--c-text-faint)}.credit-chip strong{color:var(--c-text);font-weight:600}.credit-chip.is-low strong,.credit-chip.is-failed{color:var(--c-warning)}.sync-chip{display:inline-flex;align-items:center;gap:6px}.sync-dot{width:7px;height:7px;border-radius:50%;background:var(--c-text-faint)}.sync-chip.is-synced .sync-dot{background:var(--c-strong)}.sync-chip.is-syncing .sync-dot{background:var(--c-accent)}.sync-chip.is-error .sync-dot,.sync-chip.is-unauthorized .sync-dot{background:var(--c-warning)}.streak.is-ice{border-color:color-mix(in srgb,var(--c-streak-ice) 50%,var(--c-border))}.streak.is-ice .streak-count{color:var(--c-streak-ice)}.streak-page{display:grid;gap:20px;max-width:880px}.streak-hero{display:grid;grid-template-columns:auto auto 1fr;grid-template-areas:"glyph number unit" "glyph headline headline" "glyph action action";align-items:baseline;column-gap:12px;row-gap:6px;padding:20px 24px;border-radius:var(--radius-lg);border:1px solid var(--c-border);background:var(--c-surface)}.streak-glyph{grid-area:glyph;align-self:center;width:72px;height:84px;background:var(--c-text-faint);-webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><path d='M50 8 C 56 26, 78 34, 76 58 C 75 76, 62 90, 50 92 C 36 90, 24 76, 24 58 C 24 44, 36 40, 40 26 C 43 36, 48 38, 50 8 Z'/></svg>") center / contain no-repeat;mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><path d='M50 8 C 56 26, 78 34, 76 58 C 75 76, 62 90, 50 92 C 36 90, 24 76, 24 58 C 24 44, 36 40, 40 26 C 43 36, 48 38, 50 8 Z'/></svg>") center / contain no-repeat}.streak-glyph.is-active,.streak-glyph.is-pending{background:var(--c-streak-fire);filter:drop-shadow(0 0 14px color-mix(in srgb,var(--c-streak-fire) 45%,transparent))}.streak-glyph.is-frozen{background:var(--c-streak-ice);-webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><g fill='none' stroke='black' stroke-width='5' stroke-linecap='round'><g id='a'><path d='M50 50 L50 14 M50 26 L42 18 M50 26 L58 18 M50 38 L44 32 M50 38 L56 32'/></g><use href='%23a' transform='rotate(60 50 50)'/><use href='%23a' transform='rotate(120 50 50)'/><use href='%23a' transform='rotate(180 50 50)'/><use href='%23a' transform='rotate(240 50 50)'/><use href='%23a' transform='rotate(300 50 50)'/></g><circle cx='50' cy='50' r='6'/></svg>") center / contain no-repeat;mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><g fill='none' stroke='black' stroke-width='5' stroke-linecap='round'><g id='a'><path d='M50 50 L50 14 M50 26 L42 18 M50 26 L58 18 M50 38 L44 32 M50 38 L56 32'/></g><use href='%23a' transform='rotate(60 50 50)'/><use href='%23a' transform='rotate(120 50 50)'/><use href='%23a' transform='rotate(180 50 50)'/><use href='%23a' transform='rotate(240 50 50)'/><use href='%23a' transform='rotate(300 50 50)'/></g><circle cx='50' cy='50' r='6'/></svg>") center / contain no-repeat}.streak-number{grid-area:number;font-size:44px;font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums}.streak-number.is-words{font-size:22px}.streak-hero.is-empty{grid-template-areas:"glyph number number" "glyph headline headline" "glyph action action"}.streak-unit{grid-area:unit;color:var(--c-text-muted)}.streak-headline{grid-area:headline;margin:0;color:var(--c-text-muted)}.streak-hero.is-good .streak-number,.streak-hero.is-good .streak-headline{color:var(--c-strong)}.streak-hero.is-warn .streak-headline{color:var(--c-warning)}.streak-hero.is-ice .streak-number,.streak-hero.is-ice .streak-headline{color:var(--c-streak-ice)}.streak-hero .btn{grid-area:action;justify-self:start}.streak-card{display:grid;gap:14px;padding:18px 20px;border-radius:var(--radius-lg);border:1px solid var(--c-border);background:var(--c-surface)}.streak-card-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px}.streak-stats{display:flex;gap:20px}.streak-stat{display:grid;gap:2px}.streak-stat strong{font-size:18px;font-variant-numeric:tabular-nums}.streak-grid{--cell: 13px;--gap: 3px;display:grid;grid-template-columns:18px 1fr;grid-template-rows:16px auto;gap:4px 8px;overflow-x:auto}.streak-months{grid-column:2;position:relative;height:16px}.streak-months span{position:absolute;inset-inline-start:calc(var(--week) * (var(--cell) + var(--gap)));top:0;font-size:11px;color:var(--c-text-faint);white-space:nowrap}.streak-weekdays{grid-column:1;grid-row:2;display:grid;grid-auto-rows:var(--cell);gap:var(--gap);font-size:11px;color:var(--c-text-faint);line-height:var(--cell)}.streak-cells{grid-column:2;grid-row:2;display:flex;gap:var(--gap)}.streak-week{display:grid;grid-auto-rows:var(--cell);gap:var(--gap)}.streak-cell{display:block;width:var(--cell);height:var(--cell);border-radius:3px;background:var(--c-streak-empty)}.streak-cell.is-future{background:transparent}.streak-cell.is-l1{background:var(--c-streak-level1)}.streak-cell.is-l2{background:var(--c-streak-level2)}.streak-cell.is-l3{background:var(--c-streak-level3)}.streak-cell.is-l4{background:var(--c-streak-level4)}.streak-cell.is-frozen{background:var(--c-streak-ice)}.streak-cell.is-today{box-shadow:0 0 0 1.5px var(--c-accent)}.streak-legend{display:flex;align-items:center;justify-content:flex-end;gap:5px}.streak-legend .streak-cell{--cell: 11px}button.plan-position{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;margin:0}.link-btn{background:none;border:none;padding:0;color:var(--c-accent);cursor:pointer;font:inherit;text-decoration:underline;text-underline-offset:3px}.action-intent{display:grid;gap:2px;margin:0 0 4px;max-inline-size:52ch}.action-intent strong{font-weight:500}.streak{width:100%;cursor:pointer;font:inherit;color:inherit;text-align:start}button.streak:hover{border-color:var(--c-border-strong)}.streak-open{margin-inline-start:auto;color:var(--c-accent)}.news-page{max-inline-size:820px;gap:28px}.news-status{display:flex;flex-wrap:wrap;align-items:center;gap:12px}.news-offline{color:var(--c-warning)}.news-filters{display:flex;flex-wrap:wrap;gap:8px}.news-filter{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px solid var(--c-border);background:var(--c-surface);color:var(--c-text-muted);cursor:pointer;transition:border-color var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease)}.news-filter:hover:not(:disabled){color:var(--c-text);border-color:var(--c-border-strong)}.news-filter.is-active{color:var(--c-accent);border-color:var(--c-accent);background:color-mix(in srgb,var(--c-accent) 10%,var(--c-surface))}.news-filter:disabled{opacity:.45;cursor:default}.news-filter-count{font-size:12px;color:var(--c-text-faint)}.news-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}.news-card{display:grid;gap:10px;padding:20px 22px;border-radius:var(--radius-lg);border:1px solid var(--c-border);background:var(--c-surface)}.news-card.is-fresh{border-inline-start:3px solid var(--c-accent)}.news-card-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.news-topic{font-size:12px;font-weight:600;color:var(--c-accent)}.news-fresh{font-size:11px;font-weight:700;padding:1px 8px;border-radius:999px;color:var(--c-accent);background:color-mix(in srgb,var(--c-accent) 14%,transparent)}.news-meta{margin-inline-start:auto}.news-title{margin:0;font-size:18px;line-height:1.6}.news-summary{margin:0;color:var(--c-text)}.news-why{display:grid;gap:2px;padding:10px 14px;border-radius:var(--radius-md);background:var(--c-surface-sunken)}.news-why p{margin:0}.news-link{justify-self:start;font-size:13px;color:var(--c-accent);text-decoration:none}.news-link:hover{text-decoration:underline}.tab-badge{font-size:11px;font-weight:700;padding:0 7px;border-radius:999px;color:var(--c-accent);background:color-mix(in srgb,var(--c-accent) 14%,transparent)}.practice-history{display:grid;gap:12px}.practice-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));align-items:start;gap:10px;margin:0;padding:0;list-style:none}.practice-item{display:grid;gap:8px;padding:14px 16px;border:1px solid var(--c-border);border-radius:var(--radius-md);background:var(--c-surface)}.practice-item.is-open{border-color:color-mix(in srgb,var(--c-warning) 45%,var(--c-border))}.practice-item-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.practice-status{flex:none;font-size:12px;font-weight:600;padding:2px 8px;border-radius:999px;color:var(--c-text-muted);background:var(--c-surface-sunken)}.practice-status.is-open{color:var(--c-warning);background:color-mix(in srgb,var(--c-warning) 12%,transparent)}.practice-status.is-reported{color:var(--c-strong);background:color-mix(in srgb,var(--c-strong) 12%,transparent)}.practice-facts{display:flex;flex-wrap:wrap;align-items:center;row-gap:4px}.practice-facts>span+span:before{content:"";display:inline-block;inline-size:1px;block-size:.9em;margin-inline:.6em;vertical-align:-.12em;background:var(--c-border-strong)}.practice-actions{display:flex;flex-wrap:wrap;gap:6px}.news-card-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px}.sheet.news-chat{inline-size:min(720px,calc(100vw - 32px));gap:14px}.news-chat-story{display:grid;gap:6px;padding:12px 14px;border-radius:var(--radius-md);background:var(--c-surface-sunken);border:1px solid var(--c-border)}.news-chat-thread{display:grid;gap:10px;margin:0;padding:0;list-style:none;max-block-size:46vh;overflow-y:auto}.news-chat-turn{display:grid;gap:4px;padding:10px 14px;border-radius:var(--radius-md);border:1px solid var(--c-border)}.news-chat-turn.is-learner{justify-self:start;max-inline-size:85%;background:color-mix(in srgb,var(--c-accent) 10%,transparent)}.news-chat-turn.is-assistant{background:var(--c-surface)}.news-chat-who{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--c-text-muted)}.news-chat-composer{display:grid;gap:8px}